Finding the Fourth Proportional to 11,987,988.66, 16,543,087.92 and 6,555,364.02
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Solution
The fourth proportional to 11,987,988.66, 16,543,087.92 and 6,555,364.02 is: 9,046,218.38
Step by Step Solution
- Step 1: Write the proportion equation
11,987,988.66 : 16,543,087.92 = 6,555,364.02 : x - Step 2: Convert to fraction form
11,987,988.66/16,543,087.92 = 6,555,364.02/x - Step 3: Cross multiply
11,987,988.66x = 16,543,087.92 × 6,555,364.02 - Step 4: Simplify right side
11,987,988.66x = 108,445,963,330,464.62 - Step 5: Solve for x
x = 108,445,963,330,464.62/11,987,988.66 - Step 6: Final answer
x = 9,046,218.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.